TELEPHONE No. 135
Laryngaphone wall telephone.

For use on CBS No.1, 2 & 3 and Magneto systems.

The handset is a Telephone No. 186.

Telephone consists of:-
Cord, Instrument No. 222.
Cord, Instrument No. 442.
Bell No. 1A.
Telephone No. 186
Receiver, Watch No. 1B.
Coil, Induction No. 12.
 

The diagrams are all dated 1931.

Laryngaphones where used in noisy environments.  Many wall mounted models were used in Zeppelins and the like.

Circuit diagram - N235.

Wiring diagram - CBS 693 (CBS No. 1)

Wiring diagram - CBS 694 (CBS No's 2 & 3)

Wiring diagram - CBS 695 (Magneto)
 


 
 
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Last revised: January 24, 2025

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